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CVE-2026-80477.5HighCWE-1284

CVE-2026-8047: Out-of-bounds Write in CODESYS Control

CODESYS · CODESYS Control RTE (SL)

Vendor fix available · Affected: CODESYS Control RTE (SL) · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.5%probability of exploitation in the next 30 days
39th percentile
050100

Higher than 39% of scored CVEs

7.5HighCVSS 3.1
LowHigh

DescriptionCVE.org

The affected products perform improper length checking when parsing incoming HTTP requests, resulting in a size-limited out-of-bounds write. An unauthenticated remote attacker can exploit this flaw to cause a denial of service via a system crash on the affected device.

Affected products16

From the CVE record. A product or version that is not listed is unknown, not unaffected.

  • CODESYS · CODESYS Control RTE (SL)from 3.5.21.0 before 3.5.22.20
  • CODESYS · CODESYS Control RTE (for Beckhoff CX) SLfrom 3.5.21.0 before 3.5.22.20
  • CODESYS · CODESYS Control Win (SL)from 3.5.21.0 before 3.5.22.20
  • CODESYS · CODESYS HMI (SL)from 3.5.21.0 before 3.5.22.20
  • CODESYS · CODESYS Runtime Toolkitfrom 3.5.21.0 before 3.5.22.20
  • CODESYS · CODESYS Control for BeagleBone SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for emPC-A/iMX6 SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for IOT2000 SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for Linux ARM SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for Linux SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for PFC100 SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for PFC200 SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for PLCnext SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for Raspberry Pi SLfrom 4.15.0.0 before 4.21.0.0
  • CODESYS · CODESYS Control for WAGO Touch Panels 600 SLfrom 0.0.0 before 4.21.0.0
  • CODESYS · CODESYS Virtual Control SLfrom 4.15.0.0 before 4.21.0.0

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas
Exploitation
Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV
Not listed
Public check
No public nuclei template
Vendor
CODESYS
Published
May 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-8047 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.

References